Differential hardening
[机] 局部硬化
🧩 词语组成解析
differential
['dɪfə'rɛnʃəl]
adj. 差别的;特意的;[数]微分的;[机，物]差动的;
n. [数]微分;差别;工资级差;[机]差动器;
di, dif, divid 表示”分开”;”取消”,”否定”;”不同”
n. 硬化, 淬火\\n[计] 硬化, 固化, 淬火
🗣️ 情景例句
Nowadays in the USA, more and more young people are losing interest in politics.
正在的美国，越来越多的年轻人对政治丧失了兴趣。
Purpose supposes foresight.
深谋远虑。
How much did you want to increase your order.
你的订量要增加多少？